One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,8)(4,10)(5,11)(6,16)(7,9)(12,15)(13,14)(17,18,22,25)(19,23,27,21)(20,24,30,32)(26,31,28,29)(33,34,39,43)(35,37,44,40)(36,41,46,48)(38,42,47,45)(1,3,7,6)(2,8,9,16)(4,12,14,11)(5,10,15,13)(17,19)(18,23)(20,26)(21,25)(22,27)(24,31)(28,30)(29,32)(33,35)(34,40)(36,38)(37,43)(39,44)(41,45)(42,48)(46,47)(2,9)(3,6)(4,14)(5,15)(17,19,22,27)(18,23,25,21)(20,28,30,26)(24,29,32,31)(33,36,39,46)(34,41,43,48)(35,38,44,47)(37,42,40,45)(1,4)(2,10)(3,12)(5,16)(6,11)(7,14)(8,15)(9,13)(17,19)(18,23)(20,28)(21,25)(22,27)(24,29)(26,30)(31,32)(33,37,39,40)(34,35,43,44)(36,45,46,42)(38,41,47,48)(1,5,7,15)(2,11,9,12)(3,13,6,10)(4,8,14,16)(17,20)(18,24)(19,26)(21,29)(22,30)(23,31)(25,32)(27,28)(33,36)(34,41)(35,38)(37,42)(39,46)(40,45)(43,48)(44,47)(1,6,7,3)(2,8,9,16)(4,11,14,12)(5,10,15,13)(17,21,22,23)(18,19,25,27)(20,29,30,31)(24,26,32,28)(33,38)(34,42)(35,36)(37,41)(39,47)(40,48)(43,45)(44,46)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.